I'm a big fan of the Linux
operating system. It has many advantages over MS Windows, some of
them being: flexibility, stability, better performance, security,
true multitasking, and open sourcedness. I support the Open Source
movement to create free software, an idea of Richard Stallman (who is
also a mathematician ;)) Also, a great book about Free Software
(and not only that...) is Keith Curtis' After the Software
Wars.

What we need are the Constitutional restraints on the power
of the government to interfere with free markets: in
foreign exchange, in foreign trade, in many other
aspects of our lives.Milton Friedman, "Free to Choose" TV Show, 1980, Vol 2/10